<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="../bootstrap-5.1.3-dist/css/bootstrap.css">
    <script src="../bootstrap-5.1.3-dist/js/bootstrap.js"></script>
</head>

<body class="container">
    <h2>图像缩略图</h2>
    <img src="1.jpg" class="img-thumbnail">
    <img src="2.jpg" class="img-thumbnail">
</body>

</html>